.f-r {
  display: flex;
  flex-direction: row;
}
.f-c {
  display: flex;
  flex-direction: column;
}

.f-c-c {
  align-items: center;
  justify-content: center;
}

.f-s-e {
  justify-content: flex-start;
  align-items: flex-end;
}
